System announces “HUSH MODE CANCELLED” whenunit resumes normal operation after Hush Mode hasbeen cancelled.– Only if button is pushedSystem announces “CARBON MONOXIDE PREVIOUSLYDETECTED” when the unit has detected COconcentrations of 100 ppm or higher.– System announces “PUSH TEST BUTTON” when the unitis powered up, reminding user to activate the TestButton.• End of Life Hush. At end of product life, the button can bepushed to silence the end of life "chirp" for approximately3 days at a time, for a maximum of 30 days life extension.• One “chirp” every 30 seconds coupled with a green LED flashtwice a second is an indication that the alarm ismalfunctioning. If this occurs call the Product Support Line at1-800-880-6788.• Test/Reset button performs functions.(See page 14).• HUSH Control Feature that silences the unit during nuisancealarm situations (see page 15).• Peak Level Memory Feature which alerts user when the unithas detected CO concentrations of 100 ppm or greater (seepage 16).• Alarm Memory Feature that gives visual indication when analarm has sensed a hazardous condition.• Green and red LED lights that indicate normal operation andalarm status (see page 17 for details).• Tamper Resist Feature that deters children and others fromremoving the alarm (see page 17).• Battery reminder flag that prohibits installation when batteriesare not present.Features5